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SecoGear Medium-voltage Switchgear Application and Technical Guide DET-882

SecoGear Switchgear Applications

The lineup in Figure 5-16 shows VTs and CPTs line connected

for each incoming source. Included in this arrangement are

dedicated bus VTs connected on each side of the tie breaker.

Each feeder breaker is shown with relaying CTs and GSCTs.

The main breakers are shown with two sets of CTs and

incoming surge arrestors. Incoming source connections are

shown entering from above.

The main breakers can also be arranged on the ends of this

main-tie-main arrangement, allowing for more options when

either hot or cold sequence. Utility metering is required.

Figure 5-16: Typical Main-Tie-Main Example with Eight Feeder Breakers

GE SecoGear Application Guide

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